Gas-producer.



- L. F. BURGER.

; GASPBODUCER. APPLICATION FI LED JUNE 30. I913.

Patented June 19, 1917.:

UNITED s'rA Parana canton;

LEOPOLD F. BURGER, 0F BELOIT, WISCONSDV, ASSIGNOR T0 INTERN ATIONAL HAR-VESTER CORPORATION, A CORPORATION OF NEW JERSEY. 1

ens-rnonucnn.

To all whom it may concern:

Be it known that I, LEoPonn F. BURGER, a citizen of the United States,residing at Beloit, in the county of Rock and State of Wisconsin, haveinvented. certainnew and useful Improvements in Gas-Producers, of

which the following is a full, clear, andeXact specification, I .Th1sinvention relates to gas producers and more particularly to down draftgas producers of the class in which air, or air and steam, is directedinto a fuel chamber for the purpose'of supporting incandescentcombustion therein, theresulting gas being drawn ofi by means of suctionfrom an engine, or otherwise. v v y A disadvantage peculiar to downdraft producers is that of the arrangementon the top, of the generatorof the twyer and fuel hopper or charger. Central positions for both ofthese parts are desirable in order to produce the best results in theoperation of the producer, and separate openings must be provided forboth in order to prevent foreign particles from passing into the twyeror air pipes communicating therewith, when fuel is placed in-thecharger. My 'object, therefore,'is to simplify and improve the twyer andfuel hopper or ch arge arrangement.

A further object-1s to obtain greater efliciency in the operation of adevice of this class by providing for a uniform distribu- Y tion oftheair and steam mto the fuel, and

this I accomplish by providing a central location on thegeneratingchamber for the twyer. A further object is to increase thegas-inaking properties of the fuel, which is accomplished by theprovision of means for controlling the proportionate amount of air andsteam as the same are delivered to the fuelvchamber of vthe producer.

become readily apparent from the following detailed description ofoneform of my invention illustrated in the accompanying drawings, in whichThe single figure shows a vertical central sectional view of a gasproducer embodying my invention.

Similar numerals refer to corresponding parts throughout the se e alviews.

, Specification f Letters Patent Patented June 19, 1917.

Application filed J ime 30, 1913. Serial No. 776,537. I i

I In the drawings, the gas producer comprises a generating chamber 10formedof a shell portlon 11 prov dedwith a lining 12 of fire brick orother refractory material; a?

bosh 13 arranged at the bottomof the generating chamber and provided onits periphery Witll'fivaporizing chamber 14; a hearth portion 15 formedbelow the generating" =chamber and mounted within a supporting basin 16,said supporting basin having formed within a ,chamber 17 designed tocontain water for sealing the lower end of having its upper endterminating a short distance above the lower end of the bosh 13. A topplate 19 is provided for the upper end of the generating chamber andsuperimposed thereon is a water chamber '20 from which water may beconveyed to the vaporizing chamber 14 in any suitable manner. is a twyer21 extending upwardly and provided, at its upper end with a removablecover 22. A fuel charger 23 is carried within the twyerwvith its sidesspaced apart therefrom to. form an annular chamber 24:.

A flange 25 on the upper end of the fuel charger, resting on a shoulder26 formed on the twyer, is employed for supporting said fuel charger inposition within the twyer.

An air and steam pipe :27 adapted to communicatewith the side of thetwyer, with the "aporizing chamber and with the hearth portion, isarranged at one side of the producer and is provided with a blower 28 ofordinary construction. A slidable valve 29 is employed for controllingcommunication between the blower and twyer. A similar valve 30 controlscommunication between the blower and vaporizer and a like valvev ber anda butterfly valve 33 is employed therein for regulating the admission ofair to said vaporizing chamber. A vent pipe 34 is arranged on top of thegenerator chamher with its upper end open to the exterior atmosphere,and a slidable valve 35 is pro;

vided in said pipe for controlling communi- Centrally arranged on thetop plate cation with th; interior of the generating chamber. A. gasoutlet pipe 36 is arranged on the hearth portion of the producer.

The operation of the producer is as follows: Fuel is supplied to thegenerating chamber through the charger 23, and is 'ig nited in thehearth portion 15. To obtain initial combustion of the fuel, the valve35 in the vent pipe 3% is opened and communica tion with the exterioratmosphere is established for the generating chamber. The valves 29 andin the air pipe 27 are closed and the valve 31 in said. pipe is openedand the blower 28 is put in, operation for supplying a draft to thehearth portion of the producer. Obviously, with the upper end of thegenerating chamber communicating with the outside by means of the ventpipe Bl, the current supplied by the blower will move upwardly and theproducts of combustion will be carried off by said pipe.

Assuming that afuel is being used in theproducer which burns readily oris light in form, such as shavlngs or cobs, and the fire has beenproperly started but has not yet reached the desired degree of intensityfor making gas, then in order to prevent unnecessary consumption of thefuel or waste thereof through the vent pipe, the direction of the draftis reversed in the following manner:

The valve in the vent pipe and the slidable valve 31 in the air pipe areclosed and the valve 29 is opened, and thereupon the blower 28 isoperated and the draft therefrom is admitted into the generating chamberthrough the twyer at the top thereof. Sufficient air is admitted in thisway to intensify the fire until it has reached an incandescentstage. Theproducts of combustion during this operation pass through the gas outletpipe 36.

When the fire has reached the proper degree of heat in the producer formaking gas suitable for usage, the operation of the blower 28 isdiscontinued and the engine or other means used for creating suction inthe producer is started. The suction created in the hearth portionthrough the gas outlet pipe will draw steam and air from the vaporizer14 upwardly through the pipe 27 and into the generating chamber throughthe twyer 21. Incandescent combustion of the fuel is supported in thismanner and the gas resulting therefrom is carried off by the pipe 36.hen it is desired to discontinue the operation of the producer, thevalve 35 in the vent pipe as is opened to permit the products ofcombustion in the generating chamber to pass ed. 7

It will be seen from the arrangement of the twyer and fuel charger thatI have obtained a central location for both of these parts and therebythe fuel is evenly dis tributed within thegenerating chamber, as arealso the air and steam that are admitted through the twyer. By thuslocating the twyer centrally on the top of the generating chamber auniform burning of the fuel results. The method of connecting the pipe27 with the side of the twyer obviously prevents any and all possibilityof fuel passing into said pipe when the generator is being charged withfuel.

lVhile I have shown and described but one form of my device, it will,nevertheless, be understood that it is capable of many m0di ficationsand that changes may be resorted to without departing from the spirit ofmy in vention, as disclosed in the appended claims.

lVhat I claim as my invention and desire to secure by Letters Patent is:

1. In a gas producer, the combination of a generating chamber, a fuelcharger arranged at thetop of the generating chamber, a twyersurrounding said fuel charger, and a vaporizing chamber connected tosaid twy'er.

2. In a gas producer, a generatingchamher, a fuel charger on saidgenerating chamber, a twyer on said chamber for admitting combustionsupporter, said charger and twyer both occupying central positionthereon, and a vaporizing chamber connected to said twyer. v

3. In a gas producer, a generating chamher, a fuel charger centrallyarranged on said chamber, a twyer surrounding said fuel charger, and avaporizing chamber connected to said twyer.

4. In a gas producer, the combination of a generating chamber, a twyercentrally arranged on the top thereof, a fuel charger arranged withinsaid twyer and spaced apart from the sides thereof, and an air and steampipe arranged on the side of said twyer and communicating with theinterior thereof.-

In testimony whereof I atiiX my signature, in the presence of twowitnesses.

LEOPOLD F. BURGER.

Witnesses:

S. E. HOUSTON, James D. MCGAALN.

